Question

what is sum of roots of a quadratic equation x2+7x+10=0?

Answer 1

Answer:

x²+7x+10 =0

x²+5x+2x+10 =0

x(x+5) 2(x+5)=0

(x+5) (x+2) =0

x+5=0 / x+2=0

x=-5 / x=-2

sum of zeroes = -(-5-2)

=7

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